Five years since directing a segment of the anthology film “The Year of the Everlasting Storm,” renowned Chilean director Dominga Sotomayor is back in Cannes with “ La Perra .” Premiering at Directors’ Fortnight, the film is based on Pilar Quintana’s eponymous book and produced by Chile ’s Planta in co-production with Brazil’s RT Features.  “La Perra” stars Manuela Oyarzún as Silvia, a woman whose quiet life on a remote island off the Chilean coast is shaken by the arrival of stray puppy Yuri,